Vent valve for radiators



lNVENTOF (faam C7 MM E. E. DECKER VENT VALVE `FOR RADIATORS Filed Nov. 1l 1920 Figli MM ATTORNEYS.

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Application led November l1, 1929. Serial lfio. 423,47.

To all whom it may' concern: through the saine taken on the line 2-2 of Be' it known that l, EDWARD E. DECKER, l? ig. 3; a citizen of the United States, and a res- Figure 3 is a vertical longitudinal secident of Elizabeth, in the county of Union tional view through the valve talren on the o and State of New Jersey, have invent/ed line 3-3 of F ig. 2; eo

new and useful improvements in V ent Figure l is a detached perspective View Valves for Radiators, of which the followof the therinostatic spring element, and

ing is a specification; Figure 5 is a sectional view through the This invention relates to a vent valve inner ball valve.

lo for radiators and the like which autoln the embodiment oit my invention illus- @o matically allows the escape of air from a trated in the drawings, the numeral 1ddesw steam or hot water heating system and preignates a tubular easing which is closed vents the escape of steam or water thereone end bya flanged cap 16 having an from after the air has been exhausted. axial cylindrical extension 5 provided at 1o rlllhe objects of the invention are to pro- .the top thereof with a pair of openings 15 f vide a valve oi? the character described e1narranged upon opposite sides ot the center bodying novel features ot construction or the cap. Upon the lower end of the whereby the valve is maintained Vin an open casing is iitted a hase cap 13 provided at .position while the saine is cold to allow the one side thereolE with a threaded nipple 1C f 2@ tree escape oit' air from heating system for attachment or the valve to a radiator therethrough andI isY automatically closed or the like. when steam or water enters the valve to it valve sleeve 6 is screwed into cyprevent .escape thereof through the valve; lindrical extension 5 ot the cap 16 and has tosecure-a valve of this character which is a valve .seat 18 arranged intermediate 2&5 quick and reliable in its operation and which length, an outwardly opening valve 7, preilis sim-ple and inexpensive in construction; erably formed of aluminum, being adapted to provide a valv havinga thermostatic to cooperate with said valve seat 18. "llie elementy which maintains the valve in open inner end of the valve sleeve 6 is provided position while the valve is cold to allow with a valve seat 19 with which is adapted no the escape ot air,'said thermostatic element to cooperate an inwardly opening ball valve 85 being adected by a passage ot steam or hot 8, the said ball valve being preferably water into the valvepto allow the valve to formed of cork and having an aluminum close, and being also actuated by a float covering or casingA as shown in Figure 5 when Awater enters the valve to allow the of the drawing. 'llhis inner ball valve 8 35 valve to closeg to provide a valve of this is held in proper position with relation to to character including a substantially U-shaped the seat 19 by' means 'ot a supporting basket thermostatic element the arms of'which en- 9Y which is substantially semi-spherical in gage, a valve to hold it from its seat while shape and is secured to the inner end of the Y the valve is cold to allow the escape of air; valve sleeve 6, said basket being provided 4@ a Heat being provided to actuate said arms at the innerv side thereof with an opening of the thermostat-ic element and allow the 20 in which the ball 8 is adapted to rest valve to close when water enters the valve, when in an open position. said thermostatic element being also affected A substantially U-shaped member 10 is byfsteam or hot water so as to allow the arranged longitudinally of the casing 142, said valve to close; and to obtain other the said member being ot any suitable coul it@ results and advantages-as may be brought struction whereby the arms thereoiE will he `out by the following description. spread apart upon influx or heat into the Referrin to the accompanying drawings, casing and the arms thereof being inclined in which lie numerals of reference indicate toward each other from their base toward the 50 the same parts throughout the several upper ends thereof. rlhe outer extremities Il views, E of the arms are bent at substantially right an- Figure 1 is a top, plan view of a valve gles to the arms, as at 21, the said ertremiu 1 constructed in accordance with my inventies 21 passing through slots 22 formed in' tion; f diametrically opposite sides of the ball su 55 Figure. 2 is a horizontal sectional view porting basket 9 below the inner end or e it@ slots -22 may be conveniently formed in the basket 9 by stamping the lugs 23 from the basket as shown in Figure 3 of the drawing, the said lugs serving as bearings for supings 24 therein, the ball 8 will float into enporting the extremities 21 of the thermostatic element 10 and also limiting the in- Ward movement of the arms of the thermostatic element'lO.

A float 11 is slidably mounted within the casing 14 and preferably has a piston fit therein, the. said float being substantially in the foiinof an inverted cup and having the top thereof formed with openings 24 to loosely receive the 'armsplof the thermostatic element 10, the said openings 24 being preferably formed by stamping the bearing lugs 25 from the top of the float, the said bearing lugs serving to engage the inner sides of the thermostatic element 10. 'A block of cork 12 is mounted within the float 11 so asto more effectively raise the float when water enters the valve. c

, In the operation of the device if the heatingsystem contains air and the pressure in the boiler is rising the therinostatic element 1() will maintain the ball valve 8 spaced fromits seat 19 to allow the escape of air through the valve, the pressure of the air liftin the allowing the air to escape'through theopenings 15. The provision of a plurality of openings arranged as shown allows the air to escape without the vusual objectionable whistling or hissing-sound. If water enters the valve the float 11 is raised thereby, the lugs 25 engaging the inner sides of the arms of the thermostatic element 10 so as to spread the same from engagement with .the ball valve 8 and thereby allow the valve 8 to close against its seat 19.y The ball valve 8 is' forced into engagemeutwith its seat 19 by engagement of the float 11 therewith as it rises, and if suiicient water has escaped around the float 11 and through the opengagement with the seat 19. Escape of water from the valve is thus positively prevented.

y When steam enters the valve the heat thereof affects thevthermostatic element 10 ,so as to Vcause the arms thereof to spread apart and allow the ball valve 8 to close, this spreading of the arms of the thermostatic element being allowed by the openings 24 in the float 11. When the ball 8 is thus released, the

pressure of the steam forces'the ball against' the seat 19 to prevent escape of the steam .from the valve. As the pressure in the heating system begins to recede a partial vacuum is created therein, whereupon the outer ball valve 7 is immediately drawn to its seat 18 66 so as to prevent the entrance of air into theball valve 7 from its seat and'.v

Lavaoae system. Thus, when the pressure iii the system again rises the hot water or steam will immediately ascend to the radiators, there being no air to obstruct the rapid rising of the steam or hot water as is the case where the system becomes filled with air when the pressure therein is reduced.

While l have shown and described one possible embodiment of my invention it will be understood that this is for the purpose of -illustrating the principles of the invention only, and that many modifications and changes can be made in the detail construction of my invention by those skilled in the art without departing from the spirit or scope thereof. Accordingly, l do not,wish to be understood as limiting myself except as required by the following claims when construed in the light of the prior art.

Having thus described the invention, what l claim is:

1; In a device of the character described, the combination of a casing having a valve seattherein, a valve to cooperate withsaid seat, dthermostatic means for holdingsaid valve away from Said seat While the casing is cool and automatically releasing said valve upon influx of heat into said casing, and a float to/actuate said valve holding means to release said valve upon influx of water into said casing.

2. In' a device of the character described, the combination of a casing having a valve seat thereinya valve to cooperate with said seat, a substantially U-shaped thermostatic element having its arms adapted to engage said valve to hold it from said seat while saidvalve is cool and to automatically release said valve upon influx of heat into said casing, and means actuated by influx of water into said'valve tfor spreading said arms to release-said valve.

3. lnla device of the character described, the combination of a casing having a valve seat therein, a valve to cooperate with said seat, a substantially U-shaped thermostatic lll@ element having its arms adapted to receive said valve between them t0 hold t-he valve from said seat while the casing is cool and.

to automatically release s aid valve upon 1nfiux of heat into said casing, and a float engaging and movable longitudinally ofthe matically releasesaid valve `upon influx ,of

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heet into seid easing., endl e iioet monnefl 'lo slide longitudinally upon seid. orme, lseid iloet hevin e paie of spaced openings therein to slideb y receive Seidl amie to speeci lie Said arms zip-art upon influx of weten into said casing' eo release seid veive.

5. in si device of elle clfieieo'ei eleseeibed.a the combination olf e easing lining e 'valve seat theein, e, valve eo cooperate with seid Seel,s emol e iliermoeelzio element having e portion thereof interposed between Seid valve and seid Veive Seel, when the casing iS cool to hold seid valve ewey izeom seid seme, said; thermostetie element being eotnelled by en influx of heet ineo seideeeing *no pemnit said valve to engage seid seele.

'6. lin o, device of ehe Chmectei described, the combination of e, casing having e valve seat therein, e, bell valve to cooperate with seid seat, e basket mounted on Seiol easing io normally support said ball valve adjacent said seal;a and e, thermosmtic element having e portion thereof rolirecely interposed loeu 'to parmi@ ee 7n lin "ion oi e' haii veine io liet ino emite I?? elly seat Y l opposie e. el, e, l eiiemos element ving the ends oi s emes benl; in werelly ioweivol eeeli @they and eiieble in seid slosa Seid enfle of the eri-me elle tine?- ?lnostetio eiemene being Clineelgiy intei'poeefl between seid valve seid 'Valve sem when the cosine,` cool., seicl lueinoseeeio element being eetnoel by inuz: of lieeff into saisi easing fio Withdmw seid enfile 'imm belzween seid valve end Seialy seat eo permif Seid Valve to engage seid seele.

EDWARD DECKER, 

